baber/WOPTO huggingface dataset:
Patent DE-4000351-A1 (DE)
Title: Mfg. integrated circuit with two complementary bipolar transistors - doping full surface conductive layer as first conductivity for base of one, and emitter coupling for second transistor
Inventor: REISCH MICHAEL
IPC: H01L21/331
Filed: 1990-01-08
Abstract: The integrated circuit with two complementary, bipolar transistors is mfd. by depositing a first conductive layer (181) on the entire surface, with first conductivity doping. From it is formed a base terminal (181) for the first transistor, and an emitter terminal (182) for the second one. The surface and sides of the two terminals are coated with an insulating structure (21). A second conductive layer of second conductivity doping is applied, and a base terminal (223) is formed from it for the second transistor, and an emitter terminal (221) for the first one. USE/ADVANTAGE - Wide band amplifies, rapid comparators, and transimpedance boosters, with self adjustment of both transistors.
Patent DE-4002269-A1 (DE)
Title: Plasma deposition of boron-contg. carbon layers - using solid boron source, esp. for getter prodn. in nuclear fusion plant
Inventor: ESSER HANS GUENTER DIPL PHYS D
IPC: C23C16/32
Filed: 1990-01-26
Abstract: In the prodn. of boron-contg. carbon layers by deposition from a plasma discharge in a hydrocarbon and/or with a solid carbon source, the boron source comprises one or more boron-contg. solid bodies provided in the plasma region. In a high vacuum plant with an arrangement for producing boron-contg. carbon layers on at least parts of the inner wall by plasma discharge, the novelty is that the boron source comprises one or more boron-contg. solid bodies, esp. boron-doped graphite elements, connected as (auxiliary) electrodes. Also claimed is a fusion plant as in (B), in which the or each limiter is formed (partially as a boron-doped graphite element. USE/ADVANTAGE - The boron-contg. carbon layers are used inhigh vacuum plants, esp. nuclear fusion plants, as residual gas getters (limiters). The use of toxic boron cpds., esp. borane, is avoided.
Patent DE-4002418-A1 (DE)
Title: Dressing for improving feel of leather
Inventor: EMMERLING WINFRIED DR
IPC: C08G18/48
Filed: 1990-01-27
Abstract: A dressing agent for leather contains polyurethanes with alkoxysilane terminal gps., prepd. in several stages by (A) reaction of aliphatic and/or aromatic di- and/or tri-isocyanates with polyethylene glycols with Mn 500-6000, in equiv. ratio of OH:NCO of 1:1.5-2, (B) reaction of the prod. with hydrophobic di- and/or poly-ols, in equiv. ratio of OH:NCO still present of 1:1.1-10, and (C) reaction of the prod. with alkoxysilanes of formula X -(CH2)q-Si(Rn)-(OR1)3-n (I), to 0 wt.% NCO content. R, R1 = 1-4C alkyl; X = amino or mercapto; n = 0 or 1; q = 2-4.
Patent DE-4006410-A1 (DE)
Inventor: DUERRSCHNABEL WOLFGANG DR
IPC: C22C1/02
Filed: 1990-03-01
Abstract: The invention relates to a semi-finished product made of copper or a copper alloy in the form of rods, tubes, profiles, sheets or strips, which is to be used in particular for machining operations. It is therefore particularly suitable for drilled, turned or milled parts. According to the invention, a chip-breaking addition of 0.01-10 % of carbon, preferably 0.01-2 % of carbon, in the form of graphite or soot particles is added to the copper or copper alloy. The blank required for the production of the semi-finished product is obtained by spray compacting.
Patent DE-4006923-A1 (DE)
Title: Sepn. material for chromatography - consists of cyclodextrin chemically bonded onto carrier via carbamic acid gps.
Inventor: CABRERA KARIN DR
IPC: B01J20/32
Filed: 1990-03-06
Abstract: A sepn. material (I) for use in chromatography consists of a carrier and cyclodextrin, chemically bonded on the carrier via carbamic acid gps. (I) can be prepd. by activating cyclodextrin with chloromethanoic acid and then reacting the activated cyclodextrin either (a) with an amino silane which contains at least one further reactive gp. to give the corresp. cyclodextrin silane deriv. and then reacting this with the carrier in a silanising reaction; or (b) directly with a carrier which is modified with amino gps. by a silanising reaction. In each case carbamic acid gps. are formed between the cyclodextrin and the amino gps. The carrier is pref. silica gel. The chloromethanoic acid ester is pref. the p-nitrophenyl or N-succinimide ester.
Patent DE-4007095-A1 (DE)
Title: Packaging material for butter etc. - comprises aluminium foil with external layer of paper covered with ethylene! copolymer
Inventor: GENSCH INGO DIPL ING
IPC: B65D65/42
Filed: 1990-03-07
Abstract: Material has an Al foil (1) provided on the food-contacting side with a fat-resistance protective layer (2) and on the outside with a covered 'pergamin' parchment paper (3). Covering (4) is of an ethylene copolymer, pref. an ethylene-acrylic acid copolymer with a 3-9% comonomer content. Protective layer (2) is pref. of a fat-repelling material. Pref. material comprises a 6.5-8 microns thick Al foil. (1) having a coating (2) on the inside of 1-3 g/m2. of a fat- and water-resistant lacquer which is also resistant when dairy produce is packaged to 1% lactic acid. On the outside of Al foil (1) is a 'pergamin' parchment paper layer (3) covered at 35-45 g/m2. of an ethylene-acrylic acid copolymer (4) with a 3-9% comonomer content.
Patent DE-4016481-A1 (DE)
Inventor: FUEHRER DIETHELM DIPL ING
IPC: G05B19/406
Filed: 1990-05-22
Abstract: When the position signals from pick-up systems (G1, G2), in particular absolute angle-encoders, are processed at given time-intervals (delta T), sporadic measurement errors can occur. The invention calls for each position measurement to be followed closely in time (delta t) by a second measurement. The second measurement is used as the position measurement if the main measurement proves to be erroneous, i.e. when there is a difference in speed from the previous measurement which would not have been expected from the normal acceleration.
Patent DE-4018910-A1 (DE)
Title: Prodn. of injection moulded clothes hanger - with support to hold trousers bar while warm, for bar links to be bent to hanger arms
Inventor: WEIHRAUCH GEORG
IPC: A47G25/28
Filed: 1990-06-13
Abstract: Directly after the clothes hanger has been removed from the injection moulding station, with its U-shaped profile cross-section downwards, the trousers bar level is placed on a support. While the material is still warm and malleable, the connecting links for the ends of the trousers bar are bent, through an external force, in the direction of the hanger hook. The end connecting links for the trouser bar are bent towards the open under side of the U-profile of the hanger arms. On removal from the injection moulder, the open lower side of the U-shaped trousers bar (9) is placed on a support (11) which fits into the U-shape. The connecting links (10) are then bent into place. The connecting links (10) between the ends of the trouser bar (9) and the hanger arms (4) are bent from the leading cheek inwards under the U-profile. The trouses bar (9) lies on a plane from the rear cheek of the hanger arms (4). ADVANTAGE - The method gives a simple mfg. process for a clothes hanger with a trousers bar.
Patent DE-4021215-A1 (DE)
Title: Battery-operated suction collection device for dog excrement - has disposable collection bag coupled to suction pipe
Inventor: WILLEMS MANFRED
IPC: E01H1/12
Filed: 1990-07-03
Abstract: The collection device has a suction pipe allowing the dog extrement to be fed into a collection bag which is fully removable  for disposal. The device is recharged after use from the mains network. The device can be transported by using a walking stick to which the device can be attached, or it may be received in a pocket, or attached to a belt. USE - For efficient removal of dog excrement.
Patent DE-4029982-A1 (DE)
Inventor: WOPFNER GASTON
IPC: B01F5/04
Filed: 1990-09-21
Abstract: A venting nozzle for liquids containing organic substances, in particular for venting wort, allows fine air bubbles to be fed into the liquid. For this purpose, air under overpressure from a ring chamber (3) that surrounds the liquid pipe (2) is introduced through fine nozzles into the liquid stream that flows in the liquid channel.
Patent DE-4034091-A1 (DE)
Title: Contact-free ignition of welding arc -  using sec. direct voltage of high no-load voltage and low current density to ensure safe ignition free from weld spitting
Inventor: CLOOS ERWIN
IPC: B23K9/067
Filed: 1990-10-26
Abstract: Method of contact-free ignition of an electric arc between a workpiece (18) and continuously fed consumable electrode (19) during MIG or MAG welding in which the welding current has a constant, low direct voltage established from a primary direct voltage source (1) and during arc ignition a high frequency ignition voltage is superimposed over about a 5mm stretch of the wire. During ignition, a secondary additional direct voltage source (20) is applied between workpiece and wire which has a relatively high no-load voltage with a low current density. ADVANTAGE - The sec. voltage ensures a safe and spray-free ignition.
Patent DE-4035544-A1 (DE)
Title: Solid-bed fischer-tropsch catalyst for wax prodn. - obtd. by adding 1-80 wt. per cent active carbon, w.r.t. iron content of catalyst at any stage before extrusion
Inventor: HAAN ROBERT DE
IPC: C01B/
Filed: 1990-11-08
Abstract: Catalyst material (I) for Fischer-Tropsch (F-T) processes contains active carbon (II). Process for the prodn. of an Fe-based catalyst (I) comprises adding 1-80 wt.% (II) (w.r.t. amt. of Fe) to one of the catalyst precursors at any stage before extrusion. (I) is useful for the low-temp. variant of the F-T process, esp. as a solid-bed catalyst; amt. of (II) is 1-80 (pref. 1-50, esp. 1-20, e.g. 5-10) wt.% w.r.t. Fe, and (II) is uniformly distributed in (I); at least 50 (pref. at least 75, esp. at least 90) wt.% of the particles of (II) are smaller than 100 microns, pref. with at least 90 wt.% smaller than 45 microns, or the same proportion is in the size range 850-1200 microns; (II) is produced from pinewood, tanniferous acacia or coconut shells, and is preactivated with steam or mineral acid. USE/ADVANTAGE - (I) is useful as an F-T catalyst (part of main claim). A process is claimed for the prodn. of hydrocarbon waxes with improved colour, by contacting a suitable synthesis gas with (I) in a solid-bed reactor at elevated temp. and pressure; paraffin wax obtd. by this process is claimed as such. Catalyst (I) gives wax with a high Saybolt no. (pref. at least 20) directly, without the need for subsequent hydrogenation.
Patent DE-4037586-A1 (DE)
Title: Real time indication method of medical probe - facilitating probe indication by non-ionising radiation and transmitting electromagnetic or acoustic waves
Inventor: ERMERT HELMUT PROF DR ING
IPC: A61B90/00
Filed: 1990-11-26
Abstract: The waves detected by the receiver (5) are converted in to electrical image signals, whereby the transmitter (4) or the receiver (5) is assigned to the probe (2). The image of the probe (2) is superimposed on a X-ray image. An image of the probe tip is produced. A resulting or continuing image is produced, with which the positions plotted in the course of time, describe the path of the probe tip covered. The probe for carrying out the method carries a transmitter or a receiver aerial (3) in its tip. The tip region of the probe (2) is provided with individual segments having locational ability, whereby the place and direction of the probe tip can be established by a multi-frequency or multiplex method. USE/ADVANTAGE - Medical probe, position of which in vessel can be displayed on monitor screen. Gives permanent indication e.g. of catheter or ultrasonic probe, during treatment with X-ray radioscopy replaced or other methods, which make use of non-ionising waves or fields.
Patent DE-4100936-A1 (DE)
Title: Reclining and seating combination for mobile home - makes use of hinged cushions to form double bed
Inventor: HAGG WILFRIED
IPC: B60N2/34
Filed: 1991-01-15
Abstract: The reclining and seating combination is for a mobile home or a camping vehicle. It incorporates two extra cushions (2, 3) joined by hinges (8, 19) are provided behind the back ret (4) of the rear seat (5). The back rest is turned down about an axis (7) so that the first cushion (2) moves upwards to connect with a fixed cushion (1) to create a level surface whilst the other cushion (3) is moved about an axis (8) to rest on a table (10) and/or a cupboard (12). USE/ADVANTAGE - Method of creating a double bed offering a high degree of comfort, for use in camping vehicle of mobile home.
Patent DE-4106033-A1 (DE)
Title: Control unit for sun protection system in office or home - has controlled shapes in  which values are displayed and using front panel switches allow reference points to be set
IPC: G05B19/10
Filed: 1991-02-27
Abstract: The control unit (10) has connections for the outputs of wind and sun sensors (22), a mains supply (18) and an output to the sunshade unit e.g. roller blind, shutters. Outer inputs are provided by a room thermostat (26) and a switch panel (44,46). Push button switches (28,30) are provided for manual control of the sunshade unit, but also have an additional function is association with a selector switch (36). Using the switches and observing valves on the built in display (35), reference values for system operation can be entered into the memory of the microprocessor unit. ADVANTAGe - Minimum of input devices to set operating condition.
Patent DE-4108735-A1 (DE)
Title: Potentiometer unit for vehicle throttle position detection - has contact spring adjustable by stop formed as slider displaceable relatively to guide stage and placeable in required position by regulating tool
Inventor: SEVERIEN HERBERT
IPC: H01H3/02
Filed: 1991-03-18
Abstract: Inside the housing is a contact switch, which has a contact spring fixed at one end to the housing, and which at its free end carries a switch contact, against which a counter-contact is movable to close a current circuit. An adjustable stop is provided for determining a basic position of the contact spring. The stop (14) is directly and movably located behind a housing aperture, and for arresting the stop a weld point connecting the stop to a housing guide stage (17) is provided. This weld point is effected by laser welding. The stop is a slider movable on a straight guide comprising a long hole (16) and a guide stage (17), and has a stop arm (15) engaging over the contact spring (11). In the long hole of the stop engages a supportive holder part.
Patent DE-4110026-A1 (DE)
Title: Biological waste water clarifier with inert gas recirculation - in which gas is circulated through vessel so that oxygen@ content is reduced and water is agitated without introducing oxygen@
Inventor: UEBERALL PETER
IPC: C02F3/10
Filed: 1991-03-27
Abstract: In a new treatment unit for waste water, a gas, and esp. atmospheric air, which has been passed through the waste water, is passed through it again once or more than once. At each passage, a part of the oxygen in the gas is biochemically consumed so that eventually the hydromechanical effect of the rising bubbles becomes preponderant over the aerobic biochemical effect of the remaining oxygen content of the gas. The treatment takes place in a sealed vessel so that the gas leaving the water can easily be collected and recirculated. A device for replacing that part of the gas which is lost in the biochemical process or by absorption is provided, and may consist of a weight- or spring-loaded valve, or a simple opening. A similar device may be used for reducing the volume of the gas being recirculated. The gas is recirculated via a duct and a fan from above the surface of the water to a distribution pipe system near the floor of the vessel. A regulatable and/or adjustable gas make-up pipe, which may also be provided with a fan, is connected to the recirculation pipe. This make-up pipe may be supplied with air, or for example an inert gas, an aerosol or another substance. USE/ADVANTAGE - Used in clarifying domestic or industrial waste water, and esp. for nitrification and/or denitrification stages. Intended partic. for clarifying water in fish farm
Patent DE-4110278-A1 (DE)
Title: Surgical instrument for implanting soft lenses in eye - has guide sleeve attached to handle by quick-action coupling
Inventor: KNORZ MICHAEL DR
IPC: A61F2/16
Filed: 1991-03-28
Abstract: A surgical instrument for implanting a soft lens (silicon disc lens) in the rear chamber of the eye, consists of a tubular handle (11) which forms a guide for a piston (14) which is actuated by a slider (12) which extends through a longitudinal slot in the tubular handle. A guide sleeve (20) is attached to the handle by a quick action coupling (24', 24'). This guide sleeve (20) receives the piston (14) and has a tapered bore (26) at its inlet end to guide the piston (14) into the close fitting part (22) of the sleeve (20). USE/ADVANTAGE - Implanting soft lenses in the eye. Has quick action coupling for the guide sleeve.
Patent DE-4111438-A1 (DE)
Title: Cleaning device for water drainage pipes and sewers - consists of small pipe with holes in its wall which sprays water onto surface of main pipe
Inventor: KIESSLING EGON HANS
IPC: E03F9/00
Filed: 1991-04-09
Abstract: A device for cleaning the bore of a pipe, especially a waste water drainage pipe or a sewer, consists of a second pipe (19) of relatively small diameter mounted inside the main pipe (11). The second pipe (19) is mounted at a short distance from the wall of the main pipe and extends over the length of the main pipe. A cleaning medium, such as high pressure water, is supplied to the second pipe and flows out through hole in the pipe wall in the form of jets which impinge on the inside surface of the main pipe. USE/ADVANTAGE - Cleaning device for bore of large diameter pipes. The device can be used without interrupting the use of the pipe.
Patent DE-4112486-A1 (DE)
Title: Gas distributor with lifting system for aeration of water in pond - has distributor fitted with floats and hinged supports which when in vertical position hold parts requiring maintenance above water
Inventor: SCHOELL STEFAN
IPC: B01F3/04
Filed: 1991-04-17
Abstract: A system for introducing gases into bodies of water has a submerged gas distributor and a means for raising and lowering this distributor. The raising/lowering means is provided with floats (7) which balance the weight of the gas distributor (5), and with parallel supports (10) whose upper ends (9) are connected by pivoting joints to the gas distributor. These supports, the distributor and the floor (2) of the tank, pond etc., form a parallelogram, and the length of the supports is such that when in a vertical position they hold the parts of the distributor which require maintenance above the surface of the water (3). USE/ADVANTAGE - Used e.g. in the aeration of clarification ponds or for introducing carbon dioxide into water in order to nourish bacteria. A means for raising and lowering the gas distributor is simpler and cheaper than the systems used at present.
Patent DE-4113005-A1 (DE)
Title: Internal combustion engine esp. diesel engine with exhaust gas filter - has filter by=pass line opened by piston and matches exhaust feedback rate to engine operating conditions
Inventor: BENDER FRANZ
IPC: F02D21/08
Filed: 1991-04-20
Abstract: The diesel engine with an exhaust gas filter (4) in an exhaust pipe (3), has a bypass line (8) around the filter position contg. a measurement device with a control piston enclosed by a housing. The exhaust gas upstream and downstream of the filter act on the different ends of the piston which is moved against a spring according to the pressure difference. The piston displacement is used as a measurement signal by a control unit (18). An exhaust gas feedback line from the exhaust pipe to the induction system contains a feedback control valve controlled according to the piston position. The piston opens the bypass line at a defined difference pressure. ADVANTAGE - Enables exhaust feedback rate to be matched as accurately as possible to the engine operating conditions.
Patent DE-4116017-A1 (DE)
Title: Embroidery machine - has series of needles on frame driven from central shaft across frame, thus permitting single unit of frame to perform independently
Inventor: MARKSCHETTEL HORST
IPC: D05C3/02
Filed: 1991-05-16
Abstract: An embroidery machine has a series of needles on a frame driven from a central shaft across the frame. The thread take-up lever has a separate drive and follows the needle. Each unit is suspended between two arms attached to the frame which contains the moving parts associated with the needle bar. Pref. the body of the frame has two bracket arms made in aluminium. Each needle unit has a needle and needle bar driven from the eccentric, from the drive shaft held in the bearing. The parts are supported in a block which is suspended between the two bracket arms at the ribs of the profile. Above and below the brackets, the unit is locked into adjustable positions. The thread take-up lever is separately driven with a backward and forward motion. This may be disconnected by the device. Included in the profile of the bottom bracket is a cable channel. An attachment is made below for a cutter motion drive for a thread cutter close to the needle. ADVANTAGE - The construction permits a single unit on the frame to perform independently.
Patent DE-4116270-A1 (DE)
Title: Active suspension for motor vehicle engine mounting - counters vibrations by electrically powered mechanical oscillating with mechanical amplification
Inventor: NAKAJIMA ZENJI
IPC: F16F13/00
Filed: 1991-05-17
Abstract: The damper has two fluid chambers linked by membrane controlled flow apertures. A sensor (60) on the vibrating part of the mounting is linked to a processor (64) which generates the drive signals for the piezo-electric mounting for the membranes. The oscillating membranes control the hydraulic flow and can therefore counter the larger mechanical vibrations. The membranes control the low frequency large amplitude vibartions as well as the high frequency low amplitude ones. The required amplitude from the piezo elements is small, allowing a compact construction. ADVANTAGE - Civers large frequency/a,plitude range; compact construction.
Patent DE-4118844-A1 (DE)
Inventor: SEGEBRECHT UDO
IPC: F04C27/00
Filed: 1991-06-07
Abstract: The invention relates to a single-stage liquid-ring gas pump with an overhung impeller (3) and a casing (7) with a suction and a discharge chamber, and suction and discharge connections on the side of the pump facing away from the drive. The continuous hub bore (13) of the impeller (3) in this arrangement is closed and sealed on the side facing away from the motor by appropriate measures, as a result of which the shaft connection can no longer be wetted by the hydraulic fluid of the pump or by the pump medium and corrosion is thus precluded. <IMAGE>
Patent DE-4118875-A1 (DE)
Title: Hoe machine for row cultivation - has outriggers supported on wheels with gear drive and driving mechanism which power gyroscopic tool assembly
IPC: A01B33/08
Filed: 1991-06-07
Abstract: A hoe machine for row cultivation is mounted on a tubular frame consisting of a transverse member (1) with a coupler (9), and a number of outriggers (24) with wheels (26). Each outrigger (24) comprises a parallelogramic frame (10, 11, 12) supporting mitre gear drive (14), and driving (15) mechanisms. The input gear (14a) is connected to a propeller shaft (16, 17) and drives a transverse shaft (19) which transmits the drive to the flanking gears (14), and subsequently to the gyroscopic tool assembly (21, 22, 23). ADVANTAGE - Eliminates damage to plants, is adaptable in breadth of operation.